Knock off air gap vs rpm air gap vs victor jr - Chevelle Tech
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post #1 of 7 (permalink) Old Nov 4th, 14, 2:45 PM Thread Starter
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Dennis
 
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Knock off air gap vs rpm air gap vs victor jr

I thought I saw a dyno where the rpm air gap was worth a few more hp over the cheap knock off ebay air gap intakes.

running a knock off right now on a 355 sbc, thought about going straight to a victor jr, engine has a ft cam 234/244 @ .050" , 10.2 to 1 compression, vortec heads,operates in the 3000 to 6500 rpm range. 3k stall ,4.10 gears with 26" slicks

Looking for a few more hp to gain some 1/4 mile trap speeds.

knock off to rpm air gap or to victor jr.

Thoughts?


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post #2 of 7 (permalink) Old Nov 4th, 14, 3:03 PM
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What are your in incrementals?
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post #3 of 7 (permalink) Old Nov 4th, 14, 3:27 PM
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Re: Knock off air gap vs rpm air gap vs victor jr

Take a look at this. http://youtu.be/i2DvnoHWagk
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post #4 of 7 (permalink) Old Nov 4th, 14, 4:27 PM Thread Starter
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Re: Knock off air gap vs rpm air gap vs victor jr

Quote:
Originally Posted by Gmsport View Post
Take a look at this. http://youtu.be/i2DvnoHWagk

NICE!, rpm air gap it is. Thanks for the link.


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post #5 of 7 (permalink) Old Nov 4th, 14, 4:32 PM Thread Starter
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Re: Knock off air gap vs rpm air gap vs victor jr

Quote:
Originally Posted by nastynate View Post
What are your in incrementals?
Won't know til next race season, changing gears to 4.10's- some suspension work
for better traction, swapping headers from 1 1/2" shorty to 1 5/8" long tubes, installed some roller tip rockers over the stockers. Still have lots of tuning to do to carb and total timing and since neither got done this year, changing intakes won't hurt nothing.

So it looks like I will be looking for a rpm air gap to purchase. I'm pretty sure it's a better intake then the cheap knock off, surely won't cost me any power to buy an air gap at this point.


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post #6 of 7 (permalink) Old Nov 4th, 14, 6:13 PM
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Re: Knock off air gap vs rpm air gap vs victor jr

Picked up a used air gap back in the summer off racingjunk.com Paid $110 shipped. Glass blasted it and had it powdercoated silver. Very similiar to the argent silver on rally wheels. Wanted to go chrome but didnt want to have any issues with the clear yellowing.

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post #7 of 7 (permalink) Old Nov 4th, 14, 6:59 PM
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Re: Knock off air gap vs rpm air gap vs victor jr

I had a A/G on my 355 and it worked good. It ran almost the same ET as the Hurricane single plane but was down on mph.

That said, I have a original 70 LT1 winters intake and it makes the A/G look like a Chinese Knock off!

Slag all over the inside of the ports and general finish.

The Hurricane is on the 406.

73 nova,3515#(all steel)Pump gas!(91octane)406ci N/A, best 1/4,1.45 '60,[email protected],10.6 @ 122.38, short shifting,NO tuning!


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